17741889. Vehicle Power Conversion System and Method simplified abstract (Hyundai Motor Company)

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Vehicle Power Conversion System and Method

Organization Name

Hyundai Motor Company

Inventor(s)

Dae Woo Lee of Incheon (KR)

Vehicle Power Conversion System and Method - A simplified explanation of the abstract

This abstract first appeared for US patent application 17741889 titled 'Vehicle Power Conversion System and Method

Simplified Explanation

The patent application describes a vehicle power conversion system that includes various components such as an input power supply, a battery, a power factor correction circuit, a power transmission unit, a three-phase motor, and a buck converter.

  • The input power supply receives AC power input.
  • The power factor correction circuit is connected to the input power supply and helps improve the power factor of the system.
  • The power transmission unit includes an inverter connected in parallel to the battery.
  • The three-phase motor is connected to the inverter and is used for vehicle propulsion.
  • At least one relay is connected to the three-phase motor and transfers power between the input power supply and the battery.
  • The buck converter, which includes a first and second switching element, is connected in parallel to the power factor correction circuit.
  • The buck converter steps down the output voltage of the power factor correction circuit and transfers the stepped-down voltage.

Potential applications of this technology:

  • Electric vehicles: The power conversion system can be used in electric vehicles to efficiently convert and manage power between the input power supply, battery, and motor.
  • Hybrid vehicles: The system can also be applied in hybrid vehicles to optimize power transfer and improve overall efficiency.

Problems solved by this technology:

  • Power factor correction: The power factor correction circuit helps improve the power factor of the system, reducing energy losses and improving overall efficiency.
  • Efficient power conversion: The buck converter efficiently steps down the output voltage, ensuring optimal power transfer and minimizing energy wastage.

Benefits of this technology:

  • Improved efficiency: The power factor correction circuit and buck converter help improve the overall efficiency of the power conversion system, reducing energy losses.
  • Optimal power transfer: The system ensures efficient power transfer between the input power supply, battery, and motor, maximizing the performance of the vehicle.
  • Enhanced energy management: The system allows for effective management of power flow, optimizing the use of the battery and reducing reliance on the input power supply.


Original Abstract Submitted

A vehicle power conversion system includes an input power supply including an AC power input, a battery, a power factor correction circuit connected to the input power supply, a power transmission unit including an inverter connected in parallel to the battery, a three-phase motor connected to the inverter, and at least one relay connected to the three-phase motor and configured to transfer power between the input power supply and the battery, and a buck converter including a first switching element and a second switching element, connected in parallel to the power factor correction circuit, wherein an end of the second switching element is connected in parallel to the power transmission unit, and wherein the buck converter is configured to step down an output voltage of the power factor correction circuit and transfer the stepped down output voltage.